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Biosimilars Interchangeability Prescription Drugs

Venable LLP

FDA Approves First Interchangeable NovoLog® (insulin aspart): Biocon’s Kirsty™

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On July 15, 2025, the FDA approved Biocon’s Kirsty™ (insulin aspart-xjhz) as the first interchangeable biosimilar of Novo Nordisk’s NovoLog® (insulin aspart). ...more

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Sandoz Launches Jubbonti® / Wyost® (denosumab-bbdz) as First Prolia® / Xgeva® Interchangeable Biosimilars

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On June 2, 2025, Sandoz announced the launch of Jubbonti® / Wyost® (denosumab-bbdz), the first Prolia® / Xgeva® (denosumab) interchangeable biosimilars to launch in the U.S....more

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May 2025 Stelara® and Humira® Interchangeable Biosimilar Approvals

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In May 2025, the FDA approved numerous biosimilars as interchangeable with Stelara® (ustekinumab) and Humira® (adalimumab), bringing the total number of Stelara® interchangeables to four, plus an additional biosimilar (Sandoz...more

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Celltrion, Samsung Bioepis, and Organon Receive Interchangeability Designations for Adalimumab Biosimilars

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In the last month, the FDA has granted interchangeability status to additional adalimumab biosimilars.  Biosimilars with an interchangeable designation may be substituted for the reference product at the pharmacy without...more

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Teva and Alvotech Announce FDA Approval of Interchangeability for SELARSDI (ustekinumab-aekn) with STELARA (ustekinumab)

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On May 5, 2025, Teva and Alvotech announced that the U.S. Food and Drug Administration (FDA) approved SELARSDI (ustekinumab-aekn) injection as an interchangeable biosimilar to the reference product STELARA (ustekinumab)....more

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Humira® Biosimilar Yuflyma® (adalimumab-aaty) Designated as Interchangeable

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On April 14, 2025, Celltrion announced that the FDA designated Yuflyma® (adalimumab-aaty) as an interchangeable biosimilar of AbbVie’s Humira® (adalimumab). Yuflyma® is a high-concentration (100mg/mL) citrate-free...more

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Alvotech Requests that FDA Refuse to License CHO-Cell Derived Ustekinumab Biosimilars as Interchangeable Until the Effects of...

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Alvotech recently submitted a Citizen Petition to the FDA requesting that the agency refuse to license any ustekinumab biosimilar as interchangeable with STELARA if it is manufactured using a Chinese hamster ovary (“CHO”)...more

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FDA Issues Draft Guidance on Postapproval Manufacturing Changes to Biosimilar Products

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​​​​​​​On July 23, 2024, the FDA issued a draft guidance entitled “Postapproval Manufacturing Changes to Biosimilar and Interchangeable Biosimilar Products Questions and Answers.”...more

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FDA Issues Draft Guidance on Demonstrating Biosimilar Interchangeability

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​​​​​​​Last month, the FDA issued draft guidance, which, if implemented, would remove a requirement for a switching study for demonstrating biosimilar interchangeability....more

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Venable’s BiologicsHQ Monthly Injection - July 2024

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Welcome to Venable’s BiologicsHQ Monthly Injection – July 2024...more

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FDA Revises Guidance on Switching Studies for Biosimilar Interchangeability

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On June 20, 2024, the FDA issued a draft guidance, “Considerations for Demonstrating Interchangeability with a Reference Product: Update” that revises the need for switching studies to demonstrate a biosimilar is...more

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Permanent Injunction Issued Preventing Launch of EYLEA® Biosimilar Yesafili™

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On June 11, 2024, the Court in Case No. 1:22-cv-00061 (N.D.W. Va.) / MDL 1:24-md-03103 (N.D.W. Va.) issued a permanent injunction against the launch of Biocon and Mylan’s Yesafili™ (aflibercept-jbvf), a recently approved...more

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Venable’s BiologicsHQ Monthly Injection - June 2024

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Welcome to Venable’s BiologicsHQ Monthly Injection – June 2024...more

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Updates on Aflibercept Biosimilar Approvals and BPCIA Litigation

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Regeneron’s regulatory exclusivity for EYLEA expired on May 18, 2024. Two days later, on May 20, 2024, the FDA announced that it has approved Mylan Pharmaceuticals, Inc. and Biocon Biologics, Inc.’s YESAFILI...more

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FDA Updates Draft Guidance on Promotional Communications of Prescription Biologics and Biosimilars

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On April 25, 2024, the FDA published a notice of availability in the Federal Register for its revised draft guidance, entitled “Promotional Labeling and Advertising Considerations for Prescription Biological Reference...more

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Venable’s BiologicsHQ Monthly Injection - April 2024

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Welcome to Venable’s BiologicsHQ Monthly Injection – April 2024...more

American Conference Institute (ACI)

[Event] 15th Summit on Biosimilars & Innovator Biologics - June 20th - 21st, New York, NY

Hosted by American Conference Institute, the Summit on Biosimilars & Innovator Biologics returns to New York City, on June 20 - 21, 2024. Now in its 15th year, the 2024 conference will dive deep into the latest legal,...more

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Biden Administration Proposes Biosimilar Substitution Without Interchangeability

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​​​​​​​The Biden Administration recently released a 2025 Budget Proposal which includes permitting biosimilar substitution without the Food and Drug Administration’s (“FDA”) separate determination of interchangeability. ...more

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Biden FY25 HHS Budget Eliminates the Separate Interchangeability Designation for Biosimilars

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On March 11, 2024, the White House released President Biden’s FY 2025 Department of Health and Human Services (HHS) Budget in Brief, which outlines $130.7 billion in discretionary funding for HHS. ...more

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Teva and Alvotech’s Adalimumab Biosimilar Receives Interchangeable Status at FDA

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On February 23rd, 2024, Alvotech and Teva announced FDA’s approval of SIMLANDI (adalimumab-ryvk), the first high-concentration and citrate-free biosimilar interchangeable with Humira. SIMLANDI injection was approved for nine...more

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First High-Concentration Humira® Interchangeable, Alvotech and Teva’s Simlandi®, Approved in the U.S.

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On February 23, 2024, the FDA approved Alvotech and Teva’s Simlandi® (adalimumab-ryvk) as biosimilar to and interchangeable with AbbVie’s Humira® (adalimumab). Simlandi® is the tenth Humira® biosimilar to be approved, and the...more

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BYOOVIZ® (Ranibizumab-Nuna) Granted Interchangeable Status

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Recently, Biogen and Samsung Bioepis’s ranibizumab biosimilar (BYOOVIZ) was granted interchangeable status by the U.S. Food and Drug Administration. BYOOVIZ was deemed interchangeable to Genentech’s LUCENTIS for the treatment...more

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New FDA Guidance Removes Interchangeability Statement from Product Labels

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On September 18, 2023, the FDA issued a new draft guidance “Labeling for Biosimilar and Interchangeable Biosimilar Products,” updating the previous labeling guidance “Labeling for Biosimilar Products” from July 2018. ...more

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Regulatory Update on Alvotech’s AVT02, a High-Concentration Interchangeable Adalimumab Biosimilar

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On September 20, Alvotech announced that FDA has accepted the resubmission of its Biologics License Application (BLA) for AVT02, a high concentration, interchangeable biosimilar to HUMIRA (adalimumab). FDA has set a...more

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FDA Releases Draft Labeling Guidance for Biosimilar Products

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Last week, FDA released a draft guidance, “Labeling for Biosimilar and Interchangeable Biosimilar Products” (“2023 Draft Guidance”) that—when finalized—will revise and replace its July 2018 final guidance, “Labeling for...more

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